The Simpsons go back to New York City so that Bart can find his old girlfriend Mary Spuckler. Meanwhile, Lisa and Marge spend the trip trying to take in New York culture on the cheap.
A black hole threatens to swallow Springfield, Homer tries to find the source of paranormal activity, and a "Back to the Future" parody in which Bart keeps Marge from marrying Homer.
Fat Tony has to serve jury duty, and his clerk, Dan, must run the mafia while he's gone. Meanwhile, Lisa considers making a disgusting change to her diet.
Homer becomes addicted to his new tablet computer. But when it is destroyed Homer becomes despondent, until he finds and provides hope for Springfield in the most unlikely place.
Homer befriends a hipster and invites his family to move in next door. However, their friendship soon sours as Springfield is transformed into a haven for "coolness."
Homer joins the "Springfield Preppers," an off-the-grid survivalist group whose leader has set up a top-secret retreat outside of town to prepare for the end of the world.
Bart poses Millhouse as his father so that they can do adult activities, and Homer becomes skilled at finding lost objects thanks to Highlights magazine.
Homer's obsession with the TV show "Storage Battles" leads the family to discover Grampa's past identity as "Gorgeous Godfrey," the most feared, villainous man in pro-wrestling history
When Bart is accused of a prank he says he didn't commit, Lisa is forced to defend him in youth court, with former attorney general Janet Reno serving as judge.
Homer contemplates his next move after getting in the doghouse with Marge, while Millhouse's new Stanley Kowalski-inspired persona makes him suddenly attractive to Lisa.
A new makeover could put Moe in a position to make big money, Bart fails at his job of taking care of Grandpa, and Lisa fights the shameless exploitation of Bleeding Gums Murphy's likeness.